list has some columns if i create new item in the list with same data it should compare and delete duplicate data and create in another list. this is the possible with nintex workflow. i tried with quering the list items and compare with workflow variable and check with condition but working.
But if you use the "query list" action, where in filter you will compare related values from the new item with other from the list + the rule for ID not equal current item's ID - you should get a list of items that match. Then if the results count > 0 I would say - delete the item, as it is duplicated.